as
transcription. Next three nucleotide segments of RNA, called tRNA (transfer
RNA), which are attached to specific amino acids, match up with the template
strand of mRNA to order the amino acids correctly. These amino acids are then
bonded

encoded strand of nucleotides ,
similar to DNA , but with a slightly different chemical structure. There are
three main forms of RNA, each a slightly different function. mRNA (messenger
RNA) is the mediating template between DNA and

including changes in the nucleotide bases of DNA ; the
other is at the level of the organism, including interactions between the
organism expressing these changes and its environment. Chance also arises here
in the sense that we cannot now